Safety-lock for fire-arms



(No Model?) D. L. TOWER.

SAFETY LOOK FOR FIRE ARMS. No. 305,866. Patented Sept. 30, 1884.

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Uni-ran STATES PATENT @rrrce.

DANIEL L. TOWER, OF BROOKLYN, NEIV YORK.

SAFETY-LOCK FOR FIRE-ARMS.

' CJPECIFICATION forming part of Letters Patent No. 305,866, dated September 30, 1884.

Application filed January 5, 1884. (N0 model.)

The object of this invention is tocombine with the hammer and trigger a safety-catch that acts to prevent the hammer being raised until the trigger is moved and prevents the hammer descending, except after the trigger has been pulled and the safety-catch moved away from the stop or notch. I accomplish these by the mechanism hereinafter described.

My improved fire-arm is constructed with a safety-catch pivoted upon a pin in thestock of the arm. One portion of the safetycatch engages a pin upon the hammer, when the said hammer is down home in the position immediately after firing a cartridge, and prevents the hammer being pulled back either accidentally or from other cause. Another portion of the safety-catch is so constructed that the operation ofthe trigger in cooking the arm first moves the safety-catch, disengaging that portion of it that is in contact with the pin upon the hammer. The further movement of the trigger cooks the hammer preparatory to firing. The safety-catch is also constructed with a sear that will engage a notch in the hammer, and retain said hammer in the position of half-cock, when desired.

My invention further relates to a safetyslide under the trigger-spring that can be operated by hand to engage a notch in the trigger and lock the same, preventing it being accidentallymoved. This safety-slide is used to lock the trigger when in its normal condition.

In the drawings, Figure 1 is an elevation of the arm and operating parts, a portion of the metal shell being removed. Fig. 2 is a plan of the hammer tumbler-trigger and safetycatch. Fig. 3 is an elevation of the operating parts in the position of half-cock. Fig. 4 illustrates a modification.

The hammer at, its operating-spring a, the trigger 1), its spring I), and the dog 0, for revolving the cylinder of cartridge-chambers, together with the stock and barrel of the firearm, are of the usual construction employed in self-cocking, revolvers.

The safety-catch d is of the shape shown in:

Figs. 1 and 3, and it is made as one piece, with the sear e and tail-piece e, and is pivoted upon a screw or a stud, 1, in the housing of the lock.

In the position shown in Fig. l the safetycatch d at one end engages the pin 1' upon the tumbler portion of the hammer a, and any attempt to move the hammer back by grasping the top of said hammer is prevented by the pin The other end of the safety-catch d in this position rests upon the inclined projection 0 upon the dog 0.

The trigger b can be locked by the safetyslide Z, being pushed by hand into the notch into the trigger at 2. The trigger-spring 1/ applies a friction or pressure to hold the slide Z in any position to which it may be moved. The trigger must be liberated by pushing back the slide Zbefore the arm can be fired. When the trigger b is moved, its dog 0 trips the safety-catch at, removing its end from contact with the pin 2' upon the hammer, and thus liberating thehammer. The further move ment of the trigger causes the finger S to act upon the hammer-tail t and move it to the position of half-cock, (shown in Fig. 3,) where, if desired, the sear 6 will engage a notch upon the'hammer-tumbler and hold it. The further movement of the trigger to fire the arm throws the hammer back still farther, and at the same time a pin, 3, in the trigger b tilts the tail-piece e and sear e and the safetycatch d and holds them away from the hammer while said hammer is descending to fire the arm. \Vhen the hammer reaches its normal position and the trigger is released, the spring d returns the safety-catch d to the position shown in Fig. 1, locking the hammer as before.

In the modification shown in Fig. 4 a projection, a", on the hammer-tumbler takes the place of the pin t the sear e is made of a modifiedshape, and the safety-catch dis formed of one even piece of metal composed of the sear e, tail-piece e, and end acted upon by the inclined portion 0. In this case the inclined portion 0 is upon the trigger b instead of upon the dog 0. The. sear e in this case is tilted when the trigger is pulled and frees the projection 143; and at half-cock, the sear catching behind it, the operations of the parts are the same as heretofore described.

I do not Wish to be understood as limiting my invention to revolving fire-arms or selfcocking revolvers, as the devices heretofore described might be applied'to any character of pistol or gun. I i

I claim as my invention The combination, with the hammer and trigger, of a safety-catch intervening between the hammer and the trigger, and being moved by said trigger, and stops upon the hammer, against which the safety-catch operates, substantially as specified, whereby the hammer cannot be cooked until the trigger has been moved, and the safety-catch also prevents the hammer descending until the trigger is moved, as set forth. 7

Signed by me this 31st day of December, A. D1884.

DANL. L. TOWER. Witnesses WILLIAM G. Morr, HAROLD SERRELL. 

